Ph.D., Computer Science
2021 – PresentUniversity of California, Davis · Davis, CA, USA
GPA: 3.96/4 · Advisors: Prof. Biswanath Mukherjee, Prof. Massimo Tornatore
Subhadeep Sahoo
Ph.D. Candidate · Computer Science
University of California, Davis
Davis, California, USA
Research Interests
- Optical networks & deterministic networking
- Disaster-resilient infrastructure
- Network-Cloud Fusion (NCF), multi-entity cooperation
- Blockchain/DLT-based provisioning & privacy-preserving contracts
- SLA metric generation, monitoring & violation alerts
Education
M.Eng. (Research), Communication & Information Systems
2017 – 2020Chongqing University of Posts and Telecommunications · Chongqing, China
GPA: 3.96/4 · Advisor: Prof. Ning‑Hai Bao
B.Tech., Electronics & Communication Engineering
2011 – 2015Maulana Abul Kalam Azad University of Technology (formerly WBUT) · Kolkata, India
GPA: 9.12/10
Experience
Research Intern — Nokia Bell Labs
Murray Hill, NJ, USA · Summer 2025
- Third‑party brokerage for network & cloud service provisioning via blockchain marketplace.
- Smart contracts, deterministic performance guarantees, SLA metrics & violation alerts.
- Full contract lifecycle tracking.
Research Intern — Nokia Bell Labs
Murray Hill, NJ, USA · Summer 2023
- Software‑defined guaranteed‑latency networking using Linux qdisc & traffic shapers.
- Designed modules and analyzed performance on a lab testbed.
Research Intern — Nokia Bell Labs
Paris, France · Spring 2020
- Edge datacenter latency minimization over deterministic optical networks.
- Built Python simulations and evaluated performance on testbed.
System Engineer — Tata Consultancy Services Ltd.
Kolkata, India · 2015 – 2017
- Network configuration review and security analysis.
- Penetration testing (OWASP), iperf benchmarks, and vulnerability assessment.
Professional Services
- Member of the technical program committee for IEEE Conference on Advanced Networking and Telecommunications (ANTS), 2023, 2024 and 2025 —
- Reviewer for IEEE Transactions on Network and Service Management (TNSM), IEEE Open Journal of the Communications Society (OJCOMS), IEEE Access, IEEE Internet of Things (IoT) Journal, IEEE International Conference on Communications (ICC), IEEE Design of Reliable Communication Networks (DRCN), IEEE ANTS, 6GNet, and Network of the Future (NoF) conference —
Teaching
- Teaching assistant for ECS 154A Computer Architecture, taught by Prof. Daryl Posnett at UC Davis —
- Teaching assistant for ECS 152A Computer Networks, taught by Prof. Dipak Ghosal at UC Davis —
- Teaching assistant for Communication Networking Theory, taught by Prof. Ning-Hai Bao at CQUPT —
Research Projects
US‑Japan JUNO3: Cloud‑Carrier Cooperation for Ultra‑Reliable Backbone Networks
- Cooperation strategies between datacenter providers and optical carriers for disaster recovery.
- Improved restoration efficiency with reduced time/cost. Tools: Python, Bash, CPLEX.
Survivable Virtual Network Embedding in Elastic Optical Networks
- Maximized VN request acceptance and spectrum efficiency while ensuring survivability.
- Tools: Python, C++, Bash.
Selected Publications
- S. Sahoo, S. Xu, S. Ferdousi, Y. Hirota, M. Tornatore, Y. Awaji, and B. Mukherjee, “Bridging Datacenter Providers’ Demands to Carriers’ Supply: Flexible Cooperation for Post-Disaster Cloud-Service Restoration”. IEEE Transactions on Network and Service Management (Submitted), 2025.
- I. M. Castrignano, S. Sahoo, S. Xu, S. Ferdousi, Y. Hirota, M. Tornatore, Y. Awaji, and B. Mukherjee, “A Centralized Cooperation Model among Datacenter Providers and Carriers for Disaster Recovery”. IEEE International Conference on Advanced Networks and Telecommunications Systems, 2025. (*Best Paper Award*)
- S. Sahoo, S. Xu, S. Ferdousi, Y. Hirota, M. Tornatore, Y. Awaji, and B. Mukherjee, “Post-Disaster Cloud-Service Restoration through Datacenter-Carrier Cooperation”. IEEE/OSA Journal of Optical Communications and Networking, 2025.
- S. Xu, S. Sahoo, S. Ferdousi, M. Shiraiwa, Y. Hirota, M. Tornatore, Y. Awaji, and B. Mukherjee, “Multi-Entity Cooperation Platform Facilitating Network-Cloud Recovery”. IEEE/OSA Journal of Optical Communications and Networking, 2025.
- S. Sahoo, S. Xu, S. Ferdousi, Y. Hirota, M. Tornatore, Y. Awaji, and B. Mukherjee, “Service Restoration in Multi-Entity Network-Cloud Ecosystems: How to Cooperate?”. IEEE Communications Magazine, 2024.
- S. Sahoo, S. Ferdousi, S. Xu, Y. Hirota, M. Tornatore, Y. Awaji, and B. Mukherjee, “DC-Carrier Cooperation for Rapid Restoration against PNE-Node Failure in Optical Networks”. IEEE/OSA Optical Fiber Communication Conference, 2024.
- S. Xu, S. Sahoo, S. Ferdousi, N. Yoshikane, M. Shiraiwa, Y. Hirota, M. Tornatore, T. Tsuritani, Y. Awaji, and B. Mukherjee, “Scheme of carrier cooperation with coordinated scheduling for faster and lower-cost failure/disaster recovery”. IEEE/OSA Journal of Optical Communications and Networking, 2024.
- S. Xu, S. Sahoo, S. Ferdousi, M. Shiraiwa, Y. Hirota, M. Tornatore, Y. Awaji, and B. Mukherjee, “A Novel Strategy of Carrier Cooperation with Coordinated Scheduling for Swift Failure/Disaster Recovery”. IEEE International Conference on Optical Network Design and Modeling, 2023. (*Best Paper Award*)
- S. Sahoo, S. Xu, S. Ferdousi, Y. Hirota, M. Tornatore, Y. Awaji, and B. Mukherjee, “Strategic Cooperation among Datacenter Providers and Optical-Network Carriers for Disaster Recovery”. IEEE Global Communications Conference, 2022.
- S. Sahoo, S. Xu, S. Ferdousi, Y. Hirota, M. Tornatore, Y. Awaji, and B. Mukherjee, “Datacenter-Carrier Cooperation over Optical Networks during Disaster Recovery”. IEEE/OSA Optical Fiber Communication Conference, 2022.
- S. Sahoo, S. Bigo, and N. Benzaoui, “Introducing Best-in-Class Service Level Agreement for Time-Sensitive Edge Computing”. IEEE/OSA European Conference on Optical Communication, 2021.
- N. Benzaoui, S. Sahoo, and S. Bigo, “Deterministic latency networks: the enabler of edge data center synchronous operation”. IEEE/OSA Journal of Optical Communications and Networking, 2021.
- S. Sahoo, S. Bigo, and N. Benzaoui, “Deterministic Dynamic Network-Based Just-in-Time Delivery for Distributed Edge Computing”. IEEE/OSA European Conference on Optical Communication, 2020.
- N. H. Bao, S. Sahoo, M. Kuang, and Z. Z. Zhang, “Adaptive Path Splitting Based Survivable Virtual Network Embedding in Elastic Optical Networks”. Elsevier Optical Fiber Technology, 2020.
- N. H. Bao, S. Sahoo, M. Kuang, and Z. Z. Zhang, “Synchronous Evacuation Strategy for Double Virtual Machines Under Disaster Risk Zone”. IEEE International Conference on Telecommunications and Signal Processing, 2020.
- N. H. Bao, M. Kuang, S. Sahoo, G. P. Li, and Z. Z. Zhang, “Early Warning Time based Virtual Network Evacuation Against Disaster Threats”. IEEE Internet of Things Journal, 2019.
Full list available on Google Scholar.
Honors & Awards
- Best Paper Award — IEEE ANTS (2025), IEEE ONDM (2023)
- Summer Research Fellowship — UC Davis (2022)
- Graduate Travel Award — UC Davis (2022)
- Graduate Student Research Fellowship — UC Davis (2020–Present)
- Outstanding International Student Award — CQUPT (2020)
- Ericsson Innovation Award — North‑East Asia (2019)
- Best Article Award on “Building a community with shared future,” CQUPT (2019)
- Chinese Government Scholarship (2017–2020)
- Student of the Year for outstanding achievement in undergraduate study (2015)
- Secured second position in national embedded systems design competition at IIT, KGP (2013)
Skills
Programming
Python, C/C++, Embedded C, SQL, Matlab
Systems & Tools
Linux, Arduino, Nessus, Kali Linux, Iperf, Metasploit
Writing
LaTeX, Word, Visualization tools
Languages
English, Hindi, Bengali